*Heatsinks are ranked according to the 150W thermal
test results column (rise over ambient temp.). Low temperatures with low
noise levels are considered best. For reference heatsinks with
variable-speed fans, only the high speed (12V) fan test result is included
in the comparison sheet; more detailed results reside in each specific
heatsink review.

The heat
output from Intel processors varies, so Frostytech tests with two thermal values
that represent the upper limits of existing CPU families. With a 150W heat load applied by the
Intel LGA775 version of FrostyTech's synthetic thermal test platform, the ASUS Lion Square heatsink maintains a good temperature of 25.7°C over ambient (44.7dBA noise) at full fan speed.

At a reduced fan speed this figure increases slightly to
29.2°C over ambient while noise output falls to 37.2 dBA; that's a fairly
average standing as Intel heatsinks go.

For the
next round of testing the heat load was decreased from 150W to 85W, and the ASUS Lion
Square heatsink tested at full (2300RPM) and reduced (1000RPM) fan speeds. The
results of these tests were temperatures of 15.3°C and 17.3°C over
ambient respectively.

Now although its price point is a little high (about
$60), given what we've seen the ASUS Lion Square heatsink is a good mid-range
thermal solution for either Intel or AMD processor platform. Clearly though,
there are plenty of other heatsinks which offer lower temperatures and are more economically
priced.

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